231112520204233 has 4 divisors (see below), whose sum is σ = 231324355695888. Its totient is φ = 230900684712580.

The previous prime is 231112520204219. The next prime is 231112520204257. The reversal of 231112520204233 is 332402025211132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231112520204233 - 2²⁹ = 231111983333321 is a prime.

It is a super-2 number, since 2×231112520204233² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231112520204195 and 231112520204204.

It is not an unprimeable number, because it can be changed into a prime (231112520204263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105917744191 + ... + 105917746372.

It is an arithmetic number, because the mean of its divisors is an integer number (57831088923972).

Almost surely, 2^{231112520204233} is an apocalyptic number.

It is an amenable number.

231112520204233 is a deficient number, since it is larger than the sum of its proper divisors (211835491655).

231112520204233 is a wasteful number, since it uses less digits than its factorization.

231112520204233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211835491654.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 231112520204233 its reverse (332402025211132), we get a palindrome (563514545415365).

The spelling of 231112520204233 in words is "two hundred thirty-one trillion, one hundred twelve billion, five hundred twenty million, two hundred four thousand, two hundred thirty-three".